Opelet
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A bright-coloured European actinian (Anemonia sulcata), or the similar Anemonia viridis
Etymology
From ope + -let? So called because it does not retract its tentacles.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.